in a parallelogram WXYZ, <W=70°,find the measure of each of the angles <X, <Y,and <Z.
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Concept:
A parallelogram is a quadrilateral with parallel and equal sides on both pairs of opposite sides.
Given:
In parallelogram WXYZ, ∠W=70°.
Find:
The measures of each of the angles ∠X, ∠Y, and ∠Z.
Solution:
In parallelogram WXYZ, ∠Y = ∠W
(∵ Opposite angles of parallelogram are equal.)
∴ ∠Y = 70°.
∠W + ∠Z = 180°
(∵ Consecutive angles are supplementary.)
∠Z + 70° = 180°
∠Z = 110°
∠X = ∠Z
(∵ Opposite angles are equal.)
∠X = 110°
Hence all the angles of the parallelogram WXYZ are
∠W = 70°
∠X = 110°
∠Y = 70°
∠Z = 110°
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